Two boards, one RFIO

A project log for The ides of DEFCON: An Unofficial Electronic Badge

A wearable hardware badge, featuring blinky lights, sound, a sub-1Ghz radio, games, and more. Based on the Freescale KW01.

John AdamsJohn Adams 12/07/2016 at 06:180 Comments

So things are moving along quite nicely. Bill's ordered some extra boards and screens and given me back the second dev board. Now, I can actually test our the radio processing without having to mock up an interface. Pretty neat!

Here's our boards in one big pile:

Soon we'll have four fully working boards, which is enough to start testing multiplayer!

Our radios are up, we're beaconing, and at the point where the boards can see each other. With two boards each, we can finish the radio protocols for messaging and fighting.

Today, I added a transistor to the piezo circuit and cross-checked all of the schematics against the KW01 reference board. Adding the transistor and accompanying resistors has greatly increased the volume of our piezo, and made it quite loud, if not annoying!

Our task list is up on the big board, and we're really getting there. Major milestones to accomplish next now include Battery, Charging, and FTDI connections. After that, I can lay out the board.

We can do this!

and Here's some sketches on how we think the game will work: